Effects of sowing time and plant population on the productive potential and agronomic characters in soy

Luiz, Marlize Cristina Pinheiro; Nogueira, Ana Paula Oliveira; Hamawaki, Osvaldo Toshiyuki; Mattos, Thúlio Pereira; Costa, Solange Celestino; Pierdoná, Flaviani Gabriela; Hamawaki, Raphael Lemes; Hamawaki, Cristiane Divina Lemes

doi:10.14393/bj-v36n1a2020-42336

Cited by 3 publications

(2 citation statements)

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“…The analysis of biometric indicators at the time of soybean flowering showed that the height of plants changed depending on agricultural practices. The timing of sowing is of decisive importance in the technology of growing crops and largely determines the further growth and development of plants (Luiz et al, 2020;Oserbaeva and Kunakbayev, 2021). The comparison was carried out at three terms of soybean planting, determined by the soil temperature at a depth of 10 cm.…”

Section: Resultsmentioning

confidence: 99%

Influence of Agrotechnical Practices and Sowing Time in Various Weather on Soybean Yield

Syromyatnikov

Semenenko

Maksimovich

et al. 2023

Acta Technologica Agriculturae

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For seed germination and the formation of a good soybean crop, significant reserves of soil moisture are required, which depends on the autumn-winter soil preparation, weather conditions and planting dates. The purpose of this study is to identify the impact of the main tillage technology on its agrophysical properties and conditions for the growth and development of soybean plants. Experimental crop rotation: soybean – winter wheat was carried out under favourable (hydrothermal coefficient 1.46) and dry (hydrothermal coefficient 0.66–0.87) weather conditions. The main tillage was carried out with a stratifier PRSM-5 to a depth of 15–17 cm or a chisel plough PCh-2.5 to a depth of 25–27 cm, with additional pre-sowing or post-sowing rolling with a ring-spur roller KKSH. Sowing was carried out at a depth of 10 cm with stable heating of the soil in three periods: the first at 8–10 °С, the second at 10–12 °С, and the third at 12–14 °С. As a result of evaluating the influence of various factors, it was found that under favourable conditions, the highest seed productivity of soybean plants (1.91–1.96 t·ha−1) was formed after treatment with the stratifier PRSM-5 at the first sowing period and at the second sowing period after chisel ploughing with additional soil compaction. In dry weather conditions, pre-sowing treatment with a stratifier PRSM-5 had an advantage in seed productivity by 7–12% compared to ploughing with a chisel plough PCH-2.5.

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Section: Resultsmentioning

confidence: 99%

Influence of Agrotechnical Practices and Sowing Time in Various Weather on Soybean Yield

Syromyatnikov

Semenenko

Maksimovich

et al. 2023

Acta Technologica Agriculturae

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“…Soybeans, like other legumes, require very significant reserves of productive moisture for seed germination and crop formation [6]. The sowing time in growing technology is of decisive importance and largely determines the conditions for the growth and development of soybean plants [7,8]. Excessively loosened soil after plowing, especially in dry conditions, requires additional compaction by rolling [9,10].…”

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confidence: 99%

Influence of agricultural practices and sowing dates under different weather conditions on soybean yield

Syromyatnikov

2023

Agrobìologìâ

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The article is devoted to determining the optimal sowing time for soybeans with stable warming of the soil, considers the processing with a stratifier PRSM-5 and chisel processing against the background of pre-sowing rolling. Using soil-cultivating units of three types, an analysis was made of the effectiveness of various methods of basic cultivation against the background of various agricultural practices. The optimal timing of soybean sowing was determined with stable heating of the soil to 8–10 o С when treated with a stratifier PRSM-5 and up to 10–12 o С during chisel cultivation against the background of pre-sowing rolling. The obtained results of the research showed that the soil density depends primarily on the method of basic cultivation. The analysis of soil density indicators as a whole showed that after treatment with the stratifier PRSM-5 it was somewhat less and averaged 1.04 g/cm3 , and after chisel treatment – 1.09 g/cm3 . The analysis of the structural composition of the soil showed that the best structural structure of the soil was noted when processing with a stratifier PRSM-5 due to the removal of the most agronomically valuable soil lumps from the lower layers to the surface, here the structural coefficient was high and reached 2.36, and with chisel processing – 2.08. An analysis of the reserves of productive moisture at the end of the growing season showed that during chisel processing they were used more rationally, and significantly decreased in the phase of full ripeness after processing with a stratifier PRSM-5 – they amounted to 57 mm, and after chisel processing – 69 mm. The experimental data obtained indicate that under dry weather conditions, the best yield was formed when treated with a stratifier PRSM-5 at the second sowing date, and when chisel loosening - during the first and pre-sowing rolling. Key words: soybean, tillage, stratifier PRSM-5, density, structure, yield.

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Height to first pod: A review of genetic and breeding approaches to improve combine harvesting in legume crops

et al. 2022

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Height from soil at the base of plant to the first pod (HFP) is an important trait for mechanical harvesting of legume crops. To minimise the loss of pods, the HFP must be higher than that of the blades of most combine harvesters. Here, we review the genetic control, morphology, and variability of HFP in legumes and attempt to unravel the diverse terminology for this trait in the literature. HFP is directly related to node number and internode length but through different mechanisms. The phenotypic diversity and heritability of HFP and their correlations with plant height are very high among studied legumes. Only a few publications describe a QTL analysis where candidate genes for HFP with confirmed gene expression have been mapped. They include major QTLs with eight candidate genes for HFP, which are involved in auxin transport and signal transduction in soybean [Glycine max (L.) Merr.] as well as MADS box gene SOC1 in Medicago trancatula, and BEBT or WD40 genes located nearby in the mapped QTL in common bean (Phaseolus vulgaris L.). There is no information available about simple and efficient markers associated with HFP, which can be used for marker-assisted selection for this trait in practical breeding, which is still required in the nearest future. To our best knowledge, this is the first review to focus on this significant challenge in legume-based cropping systems. KEYWORDS auxin transport and signal transduction genes, BEBT or WD40 genes, candidate genes, gene expression, height to the first pod, MADS box gene SOC1, QTL analysis Frontiers in Plant Science 01 frontiersin.org Kuzbakova et al. 10.3389/fpls.2022.948099 In contrast, as shown in the bottom part of Table 1, many reports in the literature use the same or similar terms for 'pods, ' where FPH (first pod height) is clearly the most commonly used, while the terms for 'bottom, ' 'lowest, ' and 'basal' pods are synonymous. Interestingly, terms referring to 'pod insertion' were used by almost all researchers from Brazil (with one Frontiers in Plant Science 03 frontiersin.org

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Effects of sowing time and plant population on the productive potential and agronomic characters in soy

Cited by 3 publications

References 17 publications

Influence of Agrotechnical Practices and Sowing Time in Various Weather on Soybean Yield

Influence of Agrotechnical Practices and Sowing Time in Various Weather on Soybean Yield

Influence of agricultural practices and sowing dates under different weather conditions on soybean yield

Height to first pod: A review of genetic and breeding approaches to improve combine harvesting in legume crops

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